To say that the UK’s vote to leave the EU has ushered in a period of “uncertainty” would be something of an under-statement.

Even though the UK voted decisively to leave the EU, there is no consensus on what Brexit means in practice. On the one hand, a few politicians, along with much of the press, are celebrating the UK’s new freedom to pursue trade deals with fast-growing emerging economies such as China and India, for now this freedom is...